Alright so i'm trying to create a whole new tech tree for a new race. I've just created one tech, and whenever i start the game i get dumped.
So here we go!
In the player entity file my research section looks like this:
    researchInfo
        count 17
        entityDefName "RESEARCHSUBJECT_MAXCAPITALSHIPSTECH0"
        entityDefName "RESEARCHSUBJECT_MAXCAPITALSHIPSTECH1"
        entityDefName "RESEARCHSUBJECT_MAXCAPITALSHIPSTECH2"
        entityDefName "RESEARCHSUBJECT_MAXCAPITALSHIPSTECH3"
        entityDefName "RESEARCHSUBJECT_MAXCAPITALSHIPSTECH4"
        entityDefName "RESEARCHSUBJECT_MAXCAPITALSHIPSTECH5"
        entityDefName "RESEARCHSUBJECT_MAXCAPITALSHIPSTECH6"
        entityDefName "RESEARCHSUBJECT_MAXCAPITALSHIPSTECH7"
        entityDefName "RESEARCHSUBJECT_MAXSHIPSLOTSTECH0"
        entityDefName "RESEARCHSUBJECT_MAXSHIPSLOTSTECH1"
        entityDefName "RESEARCHSUBJECT_MAXSHIPSLOTSTECH2"
        entityDefName "RESEARCHSUBJECT_MAXSHIPSLOTSTECH3"
        entityDefName "RESEARCHSUBJECT_MAXSHIPSLOTSTECH4"
        entityDefName "RESEARCHSUBJECT_MAXSHIPSLOTSTECH5"
        entityDefName "RESEARCHSUBJECT_MAXSHIPSLOTSTECH6"
        entityDefName "RESEARCHSUBJECT_MAXSHIPSLOTSTECH7"
        entityDefName "RESEARCHSUBJECT_EMPIRE_METAL1"

then I go to my researchsubject_empire_metal1.entity
I just took another tech and used it. I don't have any custom icons, and honestly have no idea where the hudIcon, or smallhudicon point to, could anyone tell me that?

and it looks like this:
TXT
entityType "ResearchSubject"
hudIcon "HUDICON_RESEARCHSUBJECT_STRUCTUREWORK_METALEXTRACTPSI1"
smallHudIcon "HUDICON_RESEARCHSUBJECT_STRUCTUREWORK_METALEXTRACTPSI1"
infoCardIcon ""
NameStringID "IDS_RESEARCHSUBJECT_EMPIRE_METAL1_NAME"
DescriptionStringID "IDS_RESEARCHSUBJECT_EMPIRE_METAL1_DESCRIPTION"
researchWindowLocation
    block 0
    pos [ 0 , 2 ]
ResearchField "NonCombat"
Prerequisites
    NumResearchPrerequisites 0
MinimumArtifactLevel -1
BaseUpgradeTime 40.000000
PerLevelUpgradeTime 5.000000
BaseCost
    credits 400.000000
    metal 0.000000
    crystal 25.000000
PerLevelCostIncrease
    credits 100.000000
    metal 0.000000
    crystal 25.000000
Tier 0
onlyWorksIfTierLabsExist FALSE
MaxNumResearchLevels 2
priority 1.000000
researchBoolModifiers 0
researchFloatModifiers 1
researchModifier
    modifierType "ExtractionRateMetalAdjustment"
    baseValue 0.000000
    perLevelValue 0.066667
artifactPicture ""

In addition i add namestrind and description string to the english.string file.
Game dumps.
Any ideas? Is it because i'm using an icon for another tech?
Thanks!